Home / 9,315.99-13,973.97-2,390.49

Finding the Fourth Proportional to 9,315.99, 13,973.97 and 2,390.49

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Solution

The fourth proportional to 9,315.99, 13,973.97 and 2,390.49 is: 3,585.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.99 : 13,973.97 = 2,390.49 : x
  2. Step 2: Convert to fraction form
    9,315.99/13,973.97 = 2,390.49/x
  3. Step 3: Cross multiply
    9,315.99x = 13,973.97 × 2,390.49
  4. Step 4: Simplify right side
    9,315.99x = 33,404,635.55
  5. Step 5: Solve for x
    x = 33,404,635.55/9,315.99
  6. Step 6: Final answer
    x = 3,585.73

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.